Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 428 [Rate centres in NPA 428] [Dial plan for NPA 428]

NXX: 707

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
428-707 A Perth-Andover NB EDMNNB150MD  154E IRISTEL INC. - ON 888 809002    

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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